Bed-spring frame.



PATENTED APR. 17, 1906 R. NAYSMITH. BED SPRING FRAME.

APPLICATION FILED sEPT. 26. 1905.

UNITED STATES PATENT OFFICE.

ROBERT NAYSMITH, OF PITTSBURG. PENNSYLVANIA, ASSIGNORTO PITTSBURG TUBECOMPANY, OF'PITTSBURG, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

BED-SPRING FRAME-' Specification of Letters Patent.

Patented April 17, 1906.

Application filed September 26,1906. Serial No. 280,117.

To all whom, it may concern.-

Be it known that I, ROBERT NAYSMITH, a citizen of the United States ofAmerica, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inBed-Spring Frames, of which the following is a specification, referencebeing had therein. to the accompanying drawings.

This invention relates to certain new and useful improvements inbed-spring frames; and the invention relates more particularly tometallic frames for bed-springs.

The primary object of this invention is to provide a bed-spring frameconsisting of comparatively few parts which can be easily and quicklyassembled to form a frame upon which a woven-wire fabric can be mounted.

Heretofore in frames of this character angle-irons have been used forclamping the fastening edges of a woven-wire fabric to the frame, alsoother means which were as expensive and troublesome to assemble. It isalso a well-known fact that a considerable number of rivets and boltswere used in frames of this character; and my invention aims to entirelydispense with the use of rivets, screws, or bolts in connection withbedspring frames.

I have devised novel means for fastening the woven-wire fabric to aframe, whether it be a bed-spring frame or a frame used for otherpurposes.

My invention further resides in the novel construction, combination, andarrangement of parts to be hereinafter more fully described, and thenspecifically pointed out in the claims, and, referring to the drawingsaccompanying this application, like numerals of reference designatecorresponding parts throughout the several views, in which Figure 1 is aperspective view of one of the corners of a frame constructed inaccordance with my invention. Fig. 2 is a side elevation of one of thecastings which forms the corner of the frame. Fig. 3 is a similar viewof the casting illustrating a piece of woven-wire fabric securedtherein. Fig. 4 is a perspective view of a piece of tubing employed inconnection with a bed-spring frame, and Fig. 5 is a cross-sectional viewtaken on the line a: as of Fig. 2.

In the accompanying drawings I have simply illustrated one of thecorners of a bedspring frame, this being seen in Fig. 1 of the drawings.I have not deemed it necessary to illustrate an entire frame, as theother corners are identical in construction, and in the presentillustration I have shown one of the side rails and one of the end.rails. The side rail 1 and the end rail 2 are retained together by anovel form of casting 3, this casting also being constructed to retainthe bed-spring frame upon a bedstead. The casting comprises a tubularbody portion 4, which is oval in cross-section. The one end of the bodyportion is closed and is formed with an upwardlyextending flange 5, thetop of which carries a tubular member 6, this member being disposed atright angles to the body portion 4. The member 6 centrally of its lengthis braced by two'web portions 7 7. The flange 5 upon its one edge isprovided with an outwardly-extending lug or prong 8, adapted to engagethe side rail of a bedstead and support that corner of the bed-springframe upon the bedstead.

The tubular member 6 is split, forming two upwardly-extending sides 9 9and a head 10, this head being located at the end of the tubular member6 adjacent to the prong 8. The head 10 is recessed, as at 11, to form aseat or socket for one end of the end rail 2. The bottom of the tubularmember 6 is formed with a longitudinally-disposed rib ll the object ofwhichwill be presently described.

The end rail 2 is formed of a piece of tubing, the tubing being shearedor cut longitudinally of its length, as at 12, and formed with itslongitudinal edges bent inwardly, as illustrated in Figs. 3 and 4 of thedrawings, thereby forming a longitudinally-disposed slot 14 within theperiphery or circumference of the end rail 2.

The general practice heretofore has been to employ angle-bars for theend rail of a bedspring frame, owing to the difficulty in securing awire fabric to a tube.

By using a piece of tubing and constructing it substantially asillustrated in Figs. 3 and 4 of the drawings I am enabled, incombination with the tubular member 10, to rigidly fasten the edge of apiece of woven-wire fabric 15 to the end rail 2. To accomplish this, Ibend the edge of the wire fabric 15 upon itself, as at 16, and slidethis edge in the longitudinally-disposed slot 14 of the end rail 2. Theend rail can then be partially rotated until the fabric embracesapproximately onehalf the periphery of the end rail, as clearlyillustrated in Fig. 3, at which time it can be seated in the tubularmember 6. In placing the end rail 2 in the tubular member 6 thelongitudinallydisposed rib 11 engages in the inverted-V-shaped groove12*, formed by the inwardly-bent edges of the end rail 2, this ribserving to prevent the end rail from rotating within the tubular member6, also prevent ing the woven-wire fabric 15 from becoming disengagedfrom the member 6 after it has been once clamped therein, as will bepresently described.

When the end rail 2 and the fabric 15 have been properly positioned inthe tubular member 6, the upwardly-extending sides 9 9 of said memberare bent inwardly (see Fig. 3) to embrace the end rail upon a greaterportion of its periphery, one of these upwardlyextending sides bearingagainst the wovenwire fabric 15. The fabric besides being held in the l.ngitudinally-disposed slat 14 of the end rail will be frictionally heldbetween the end rail and the side of the tubular member 6. The frioticnal engagement cf the wovenwire fabric 15 with the member 6 will serveto strengthen the longitudinal edges of the fabric, it being awell-known fact that these edges are used more than the center portionof the bed-spring frame or fabric 15.

The side rail 1 is formed of a piece of tubing oval in cross-section,the tubing corresponding in cross-section to the interior diameters ofthe body portion 4. In forming an oval opening and employing an ovaltubing to engage in said opening the casting 3 will be prevented from rttating upon the end of the side rail 1, this also being true vice versa.

By the novel construction set forth above it is evident that besides thewoven-wire fabric a bed-spring frame consists of four cornercastings,two end rails, and two side rails, these elements being assembled toform a frame of considerable rigidity and strength, which will firmlyretain the woven-wire fabric in position after it has been once placedupon said frame.

The operation of placing the fabric upon the frame is similar to theoperation now in vogue, the one end of the fabric being first fastenedto the frame and. then the fabric stretched until the other end isplaced in engagement with the frame, thereby holding the fabric in ataut condition. As rivets,

screws, and bolts are dispensed with and the number of pieces used inconstructing a bedspring frame reduced to a minimm, it is obvious that aframe constructed in accordance with my invention is extremely simpleand can be n'ianufactured at a comparatively small cost.

I/Vhat I claim, and desire to secure by Let ters Patent, is

1. In a bed-spring frame, the combination with castings, each comprisinga tubular body portion open at one end and a tubular member disposed atright angles to the body portion, said tubular member being split for aportion of its length, side rails seating in said body portions, endrails formed with longitudinally-disposed slots, said slots havinginturned edges and said end rails seating in the tubular members, thesides of the tubular members being bent over said end rails and a fabrichaving its edges secured in the sl; ts in the end rails, substantiallyas described.

2. In a bed-spring frame, the combination with side rails, of a castingcarried by each end (.f said side rails and formed with a closed tubularmember to receive the side rail, a split tubular member carried by saidcasting, an integral flange and integral webs connecting said tubularmembers, a supporting-prong carried by said casting, a tubular end railadapted to seat in said split tubular member, said tubular end railbeing split and having its edges bent inwardly to form alongitudinally-dispcsed slot adapted to receive the edge cf a woven-wirefabric, means to fix said end rail within said tubular member, substantially as described.

3. In a bed-spring frame, the combination with side rails, of a castingcarried by each end f each side rail, said castings being provided witha hollow tubular body portion to receive the side rails, a split tubularmember carried by said casting, tubular end rails mounted in said splittubular members, each said end rail having a longitudinally-disposedslot formed therein adapted to receive the edge of a woven-wire fabric,a longitudinally-.

disposed rib formed integral with the split tubular member and engaginga slot formed in the end rail to prevent rotation of said end railwithin said split tubular member, substantially as described.

In testimony whereof I affix my signature in the presence of twowitnesses. ROBERT NAYSMITH.

Witnesses:

E. E. Porrna, M. E. LAWsoN.

